Question

I have a quiz tomorrow and I need to figure out how to solve a linear equation using a graph ASAP. Can you please help me?

Answer 1

The given equations are

`\begin{gathered} x+y=18 \\ y=x+12 \end{gathered}`

The graph of the equations are shown:

Notice that the line intersect at (3,15)

Therefore, the solutions of the system of equations are

`x=3,y=15`